Truck-body tilting or dumping device



C. l. McTIGHE.

TucK Bonv num@ 0R DUMPING nEvlcE.

APPLICATION FILED JUNI-211.1919.

Patented Aug. 9, 1921.

2 SHEETS-*SHEET l IIIIIIIIIIH! nlmnun APPLICATION FILED JUNI-:11.1, |919.

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UNITED vSTATiis-P.erreur OFFICE. i

CUMIAN .1. Marrana, or CEDAR cAivxoNjsoUTiiDAxojrrAij jf fr, f

TRUCK-Boby TILrING 0R DUMrING DEVICE;

To all whom t may concern: Y

Be it known that I, CUMIAN .I. MGTIGHR, a citizen of the United States, residing at Cedar Canyon, in-the county of Meade and State of South Dakota, have inventedcertain new and useful Improvements in Truck- Body Tilting or DumpingDevices, of which the following is a specification.

The invention relates to a truck body-tilt-A ing or Ldumping device, adapted lespecially vfor use on Ford motor vehicles.-

The primary object of the invention isthe provision of a device of this character, where-4 ina truck body or box can be readily mounted upon thel chassis v'of apmotor vehicle for the dumping of the body or box, the device being of novel form andin the mounting thereof the body may be moved forwardly or backwardly upon the chassis to the vdesired degree for assuring the requisite tilting action or the proper .elevation `of 'the provision of a device of lthis character,

wherein the actuating mechanism may be operated from either side of a truclgfthe dev vice being entirely without the body or boxy tol assure full and maximum, loading ca'-V pacity, while the body or `box together with the'device maybemounted upon trucks having frames with little or noroverhang.

A still further object of the invention is the provisionof a device of this character,

which is comparatively simple in construction, very reliable andl efficient in its operation, readily and easily` applied tothe chassis of a motor truck, strong,durable and inex-V pensive to manufacture and install.

tion consists of the features of construction, combination and arrangement ofparts,` as

, will be hereinafter fully described, illustrated in the accompanying drawings, and

pointed out in the claimv hereunto` appended.

In the accompanying drawings: p Figure l is a side elevation of a motor truck of the Ford type, showing the dump Spcification of Letters Patent. Application led .Tune 17, 1919.y Serial No."3(l4,760. i

U-shaped side. sills `6. as usual.

ing or-box with devicerconstriicted i inacc'ordance withil the invention, the dumping body or boxbeing s hownin dotted lines in normal loading positionk and by fulllines 1n elevated or raised position for dumping.

Fig. 2 isafragmentary plan view with the body removedg i Fig. Bf isVv a vertical -transverse sectional view taken approximately ontlie,-line z3,-3

Fig. 4 is a-,fragmentarysectional vview line 444 O f Fig. 2.

takentlongitudinallyvapproximately A,on the F ",g. 5 isa front elevation of l box and frame lookingtowardthe .forward end thereofr and showingin detailthe guide.

adjustablelside castings.. f. ,I

Similar reference char'actersfindicate cor-v responding parts- -throughout the several views inthe drawings. I A

Fig. 6 is a `perspective view ,o'f one of the f Referring to the y.

designates generally thevwheeled ltruclof the motor vehicle type, in this, instance of thel Ford design, having its-.chassis including .spaced parallellongi'tudinally disposed Supported upon the ,chassis 5 is the vdiiinping body orlbox Ycarried lon Ia bed including the spaced parallel .lllgitudinally .disposed side pieces 8 and intermediate andsend; cross pieces 9, whichare .boltedjorgotherwiserfas. `tened to the .side pieces S toformthe rigidl the body or. box p bed or `bottom frame for. as will be apparent. n Y. Suitably andV detachably; bolted or .otherwise securedvtothe rear end. of they side 4sill :L

6 ofthe chassis 5 are` the leavesof al pairof hinges 10, theY other ,leavesof :which are:

boltedlor otherwise secured tothe side piecesy 8 of the'bed ,or bottom frame ofthebody or box 7 and in this manner thelatter is swinginglyconnected Vwith lthe truck for the dumping ofsaid body or boxbvmeans of the'tilting device hereinafter'fully described.`

'- The tilting4 device comprisesaV cross beam or bar 1l'. which is arranged transversely be-.

n f tween the bottom or; boxl and theT side `With these and other objects, the inven-A screws Y being ynadapted[tol enga ge' in'V the side .pieces 8'oftheV bed onframefforfthe body orbox'r; Aand-in thjismanner the bar.Y

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or beam 11,',isrfadjustably fastened Ain said g.

bed or frame so that it can be moved long-if tudinally upon the side pieces Stoward or away from the pivot axis of the dumping body or box 7 for a purpose hereinafter fully described.

Secured to and depending from the beam or bar 11 is a pair of spaced slightly curved:

looplike racks 15, to which are connected inclined braces 16, theI same being detaclr, ably fastened to the bed or frame of the body or box 7 and in this manner the racks 15 are rigidly held. y

Adjustably mounted on the side sills .6 of the chassis 5 are pairs of bearings 17 and 18 respectively, each being in the yform of a casting providing abearing sleeve'18 havingthe base flange-19 and a jaw 2.0 hung under the base flange 19, the latter being fitted with set screws 21. These bearings 17 and 18 are adjustablyiengaged on the side sillsG and are fastened in adjusted position by the set screws 21, each bearing having its base flange 19 resting upon the upper flange on the U-shaped sill while the jaw 20 extends beneath the said upper fiange and rests against the upper flange thereof, while the set screws 21 bite into the said upper flange and Lthereby fasten the bearings to the sill. a Journaled in the bearings 18 Yis a driven shaft 22 having fixed thereon rack gears 23, each meshing with the rack teeth of its companion rack 15, while journaled :in the bearings 17 is a driving shaft'24: the same beingfitted with a beveled gear 25 in mesh with a beveled pinion 26 fixed to the forward end of a counter shaft' 27` suitably supported from the adjacent sidesill 6 of the chassis 5 and the oppositeendof this counter shaft 27 has thereon a worm screwy 28 meshing with a worm gear 29 fixed to the driven shaft 22. The shaft 24 extends beyond opposite sides ofthe chassis .5 of' the truck A and on either end thereof is adapted to be detachably fitted a hand crank 30 so that the shaft 24 can be manually turned by an operator when standing at either side of the truck. vHowever it is to be understood that it is contemplated within the scope of this invention the said shaft 24 may be operated in any suitable manner directly from the `motor `ofthe truck A.

At the forward ends of the side pieces 8 of the bed or frame of the body orV box 7 preferably mounted upon the front cross piece 9 are angle guide blocks 31 which are adapted to'engage the side sills 6 .of the chassis 5 when the bed or bottom frame of the body'or box 7 is in normal lowered position to hold the vsaid body orbox in alinement with the chassis of the truck A. i

In the operation of the tilting device, it will be apparent that by turning the shaft 24 motion will be imparted to the rack 15 will effect'the raising of thel forward end .wofthebodyorbox 7 to elevate it for the dumping ofthe contents thereof. 0n reverse movement of the shaft 2/1 they body or box 7 will be automatically lowered to normal positionfor receiving a load. The employment of the worm` screw` 28 and worm gear 29 enablesl the easy raising of the body or box '7 to any desiredheight and the body will maintain that position until changed by the operator. y After the load has beenk dumped and the box brought vback to normal position the said worm screw `28 and wormV gear 29 will act as a lbrake mechanism by reason of the character of the same. o

/By' reason ofthe adjustability of the vtilting device the body may be moved backwardly ort'forwardly to a greaterxorles'ser degree, it being understood of course that the hinges-1Q are changed accordingly for varying thetilting action and alsoto permit the properelevation tol be had of the tilting body or box. fv From the foregoing it is thought `that the construction' andr manner' of operation of thedelvice will beclearly understood and therefore a more extended'explanation has been omitted. o f f Itis of course to be understood that changes, variations and modifications may o be made inthe inventionsuch as come properlywithin the scope of the appended claim, without departing' from the spirit ofthe in vention or sacrificing any of its advantages."

What is claimed isz' o The combination 'with' a wheeled truck frame having channeled side sills, of a tilting body having a part provided 4with slots in its sides, means pivotally securing the tilting body on' the truck frame, lifting rack depending from the body forwardly of its axis of movement `and having across-piece adjustably-engaged in the 'slots/in the bed of said body to permitv variable changing ofthev rack, pairs of bearings each having a companionbase flange and jaw for engagement with the channeled sill of the truckframe, set screwscarried by the base flanges of said bearings for locking the latter-in adjusted 'position on the channeled sill of the truck frameja transmission shaft journaled in onefpair of bearings and have ing pinions meshed with 'the racks, a power shaft journaledin the other pair of vbearings and having gear connection with the transmission shaft and a hand crank engageable with either end of the power shaft at opposite sides ofthe truck frame.

ture hereto.

" CUMIAN J. MOTIGHE. 

